diff --git a/crates/eval/Cargo.toml b/crates/eval/Cargo.toml
index 2e9ebd42c..ba059edfd 100644
--- a/crates/eval/Cargo.toml
+++ b/crates/eval/Cargo.toml
@@ -23,3 +23,4 @@ slack-rust = { package = "slack-rust-rs", version = "0.0.1" }
 tokio = { version = "1.39.0", features = ["full"] }
 reqwest = { version = "0.12.4", features = ["json"] }
 serde_json = { workspace = true }
+rayon = "1.8"